Electrode-holder.



G. HILLS.

ELECTRODE HOLDER.

APPLICATION FILED NOV. 26, 1912.

1,069,697, Patented Aug.12,1913. 3"T

-: II v W, /A

gala/245s; I, I E W W 4 W H I 3 434N46 UNITED Pf TENT OFFICE.

GEORGE HILLS, OF WESTFIELD, NEW JERSEY.

ELECTRODE-HOLDER.

Specification of Letters Patent.

Patented Aug. 12,1913.

Application filed November 26, 1912. Serial No. 733,629.

To all whom it may concern:

Be it known that I, Gnonon HILLS, a subjcct of the King of Great Britainand he land, residing at Westfield, New Jersey, have im'ented certainnew' and usefullmpfovements in Electrode-Holders of which the followingis a clear, full, and exact description.

consists of certain features. of construction and combinations of partsto be hereinafter described and then claimed with reference to theaccompanying drawings showing a de sirablc embodiment of the invention,and in WhlCh- Figure 1 is an elevation of the improved electrode holder;and Fig. 2 is a longitudinal section thereof on the line'22 Fig. 1.

Referring to the drawings, the tubular stem or shank l of the holder isof conducting. material for the purpose of conducting the current. Saidstem or shank has a wooden or non-conducting handle 2, said handle beingbored out at 3 to receive one end of said stem or shank. Preferably theconnection is such that the parts are held together by friction. Aterminal 4 is attached to the handle extremity ofthe stem or shank 1,this being the terminal for the feed wire or cable 5 for the current.

The stem or shank 1 which may be said to constitute a conducting memberis provided at its outer end with an opening or recess 6, preferably ofsuflicient depth so that an elec-' trode .19 when seated in said openingor recess will lie transversel of said member or shank so that thelongitudinal axis thereof will pass diametrically through saidelectrode. By forming an opening or recess 6 in said stem or shank,fixed jaw 7 is provided for said holder. One side wall 8 of said recessis preferably inclined as shown, so that said recess flares outwardly toenable the guiding and seating of the electrode into the same. A movableopposlng aw 9 is provided which is guided in the tubular 1ne1nber, thesame being carried by a rod or plunger 10, which is operable by a leverarm 12. Said arm is pivoted at 13 to a projection 14 on said stem orshank, and the arm is connected with said rod or plunger 10 by a pivot15. Opposite the projection 14 a slot 16 is prbvided in the tubularmember 1 and through said slot the lever arm 12 protrudes. The outer endof said lever arm is bent or extends laterally to a point opposite theinner end of the handle 2 and is formed with a thumb piece 17. A helicalspring 18 is located within the tubular member 1 and surrounds the rodor plunger 10, it being seated at one end against the inner side of themovable jaw 9 and at the other end against a perforated guide block orbushing 11. The tendency of said spring is to urge or move the movablejaw 9 toward the other jaw 7 y The improved electrode holder is operatedas follows: To grasp an electrode such as 19, the same is insertedsidewise into the recess 6 until it is seated at the inner end of thesame upon the jaw 7 It will be noticed that the spring 18 causes themovable jaw 9 to automatically grip the electrode. The electric weldingprocess can now be proceeded with in the usual manner, the holder beingordinarily held in horizontal position, the hand gripping the handle 2.To discard the stub of the electrode, the operator presses the thumbupon the thumb piece 17, thereby compressing the spring 18 andretra'cting the jaw 9, whereupon the I electrode stub is freed and canbe disen gaged from the holder. I

What I claim as new is 1. In an electrode holder, the combination of ahandle, electrode gripping means, conducting means oonneoting saidparts, said gripping megns comprising jaws and mechanism whereby'one ofsaid aws is urged in a direction away from said handle, and meanswhereby through hand pressure of the operator toward the said handle thejaws of said gripping means are opened.

2. In an electrode holder, the combination of a handle, a conductingmember thereon provided with a fixed jaw, a movable jaw cooperat ng withsaid jaw for gripping an electrode, a spring normally urging saidmovable jaw away from said handle to- Ward said fixed jaw, and manuallyoperated means for withdrawing said movable jaw.

3. In an electrode holder, the combination of a tubular conductingmember provided with a fixed jaw, a movable jaw cooperating with saidjaw and located in said conducting member for gripping an electrode, aspring normally urging said movable jaw toward said fixed jaw, andmanually operated means acting on the same side of said movable jaw assaid spring for withdrawing said movable jaw.

4. In an electrode holder, the combination of a handle, a tubularconducting member thereon having an open side-recess providing a fixedjaw, a movable jaw cooperating with said jaw and located in saidconducting member for gripping an electrode, a spring normally urgingsaid movable jaw toward said fixed jaw, and manually operated meansextending toward said handle for withdrawing said movable jaw. v

5. In an electrode holder, the combination of a tubular member providedwith a jaw, a handle for said member, a movable jaw opposing said jaw togrip an electrode, a lever arm pivoted to said member and extending intocooperative relationship with said handle, connecting means between saidarm and movable jaw, and a spring acting on said movable jaw to urge itaway from said handle and toward said other jaw.

6. In an electrode holder, the combination of a tubular member having anopen side- =recess providing ajaw, a handle for said member, a movablejaw located in said member and opposing'said jaw to grip an electrode, alever arm pivoted to said member and extending into cooperativerelationship with said handle, connecting meansbetween said arm andmovable jaw, and a spring seated in said tubular member and acting onsaid movable jaw to urge it toward said other jaw.

7 In an electrode holder, the combination of a tubular conducting memberhaving an open side-recess providing a jaw, a non-conducting handle forsaid member, a movable jaw located in said member and opposing said jawto grip an electrode, a lever arm pivoted to said member and extendinginto coperative relationship with said handle, a rod connecting said armand movable jaw, and a spring seated in said tubular member and actingon said movable jaw to urge it toward said other jaw, said handle havinga recess toreceive the terminal of an electric conducting wire or cablefor electric connection with said tubular mem ber.

8. In an electrode-holder, the combination of a handle, a conductingmember-connected at one end with said handle and provided with anopen-side recess providing a jaw at the other end, and into which recessan electrode can be inserted laterally, a movable jaw opposing aforesaidjaw, means between said movable jaw and said handle tending to urge saidmovable jaw away from said handle and toward said other jaw, and

means extending to a point alongside said

